Re: [PATCH 00/14] sched: Support shared runqueue locking

Andrea Righi
2025-09-11T14:49:01Z

On Thu, Sep 11, 2025 at 04:30:00PM +0200, Peter Zijlstra wrote:
> On Thu, Sep 11, 2025 at 04:00:22PM +0200, Peter Zijlstra wrote:
> > On Wed, Sep 10, 2025 at 07:32:12PM +0200, Andrea Righi wrote:
> >
> > > Reproducer:
> > >
> > > $ cd tools/sched_ext
> > > $ make scx_simple
> >
> > FWIW, I only have one machine where this works. Most of my machines this
> > results in an endless stream of build fail; same for the selftest stuff.
> >
> > No clues given, just endless build fail :-(
>
> Ah, I need to do: make O=/build-path/. The one machine it worked on had
> an actual test kernel installed and booted.

Maybe you need this?
https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git/commit/?h=for-6.18&id=de68c05189cc4508c3ac4e1e44da1ddb16b1bceb

In case you're getting build failures with the likely() macro.

-Andrea